Firearm receiver



FIG. 1 is a perspective view of the firearm receiver showing our newdesign;

FIG. 2 is a another perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front end view thereof;

FIG. 6 is a rear end view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines illustrate portions of the firearm receiver that formno part of the claimed design.

CLAIM The ornamental design for a firearm receiver, as shown and described. 